I have one fitted to our GSF and have had no issues other than the WiFi button rattling when over 5000rpm 😂. A bit of foam around the button fixed that. I was a bit apprehensive at first, as it wasn’t a top spec Next base model but went for it in the end, following my experience below.
I fitted a top spec (at the time) Nextbase 612 to our RX and despite all of its good reviews, I wouldn’t recommend it. It’s very sensitive to having a low internal battery and often will not start up if the car is left for a few days, without the battery being charged in house. Also it needs its memory card replaced every 9-12 months, despite using top of the range memory cards 🤦🏽♂️